Finding the Fourth Proportional to 620,438.24, 930,660.96 and 221,094.38
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Solution
The fourth proportional to 620,438.24, 930,660.96 and 221,094.38 is: 331,642.85
Step by Step Solution
- Step 1: Write the proportion equation
620,438.24 : 930,660.96 = 221,094.38 : x - Step 2: Convert to fraction form
620,438.24/930,660.96 = 221,094.38/x - Step 3: Cross multiply
620,438.24x = 930,660.96 × 221,094.38 - Step 4: Simplify right side
620,438.24x = 205,763,907,941.41 - Step 5: Solve for x
x = 205,763,907,941.41/620,438.24 - Step 6: Final answer
x = 331,642.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.